| Section IV.—The Fading of Photographic Prints.—The causes which produce it.—The comparative permanency of Prints.—The mode of testing permanency | [160] |
CHAPTER IX.
ON THE DAGUERREOTYPE AND TALBOTYPE PROCESSES.
| Section I.—The Daguerreotype.—The nature of the sensitive film.—Development of the Latent Image.—The strengthening of the Image by means of Hyposulphite of Gold | [171] |
| Section II.—The Processes of Talbot, etc.—The Calotype.—The Waxed Paper Process of Le Grey.—The Albumen Negative Process.—Taupenot's Collodio-Albumen Process | [176] |
PART II.
PRACTICAL DETAILS OF THE COLLODION PROCESS.
CHAPTER I.
PREPARATION OF COLLODION.